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Got some in the local LBS. though they were awesome till I realized that the rear dropouts are horrible. You have just about got to take the whole skewer off to remove the rear wheel. Good luck in a road race if you flat.

Just thought I'd add two cents. I swap back and forth on the rear wheel all the time with no issues. Dropouts seem the same as my prior bike Tarmac Sworks SL3. However, this frame is much faster due to power transfer from BB386.

I did a little testing. I swapped over same DA 7900 components and same 2012 Powertap perfectly calibrated and zero'd. The L1R produced an average 20 min peak power of 361 watts average compared to previous 20 min peak power averages ranging 330 - 350 watts average for typical tests on that same closed road in prior two months of testing. It could have been an anomaly, but not likely since the sensation was felt and similar results were observed on other rides. My guess is that the BB386 and 60 ton carbon on the Litespeed L1R creates a stiffer power transfer than my prior 2011 Specialized Tarmac Sworks SL3 that used 46 ton carbon and a BB30.

Also, the difference in 45 and 60 ton carbon is in practice very, very little. No frame is build by either, as they are much too brittle to build practical frames of. The manufacturers only use it as reinforcements in strategic places.